Absolute Zero

Front

What is Absolute Zero?

Back

Absolute Zero is the theoretical lowest temperature possible, where all molecular motion stops, defined as 0 Kelvin, -273.15°C, or -459.67°F.

Front

What is the temperature of Absolute Zero in Celsius?

Back

-273.15°C.

Front

What happens to molecular motion at Absolute Zero?

Back

At Absolute Zero, molecular motion theoretically comes to a complete stop.

Front

What is the coldest temperature ever recorded on Earth?

Back

The coldest temperature ever recorded on Earth is -128.6°F (-89.2°C) in Antarctica.

Front

What is the temperature inside a normal kitchen freezer?

Back

-18°C (0°F).

Front

How does temperature relate to molecular motion?

Back

As temperature increases, the speed of molecules increases; as temperature decreases, molecular speed decreases.

Front

What is the temperature of space?

Back

The temperature of space is approximately -270°C (-454°F).

Front

What is the significance of 0 Kelvin?

Back

0 Kelvin is the absolute zero point on the Kelvin scale, representing the absence of thermal energy.

Front

What happens to the temperature of a sample if its molecules speed up?

Back

The temperature of the sample increases (goes up).

Front

What is the relationship between temperature and heat energy?

Back

Temperature is a measure of the average kinetic energy of particles in a substance; more heat energy means higher temperature.